MSHA - Code of Federal Regulations - 30 CFR 75.803-2
Skip to content
MSHA - Title 30 CFR
30 CFR § 75.803-2
Ground check systems not employing pilot check wires; approval by the Secretary. Ground check systems not employing pilot check wires will be approved only if it is determined that the system includes a fail safe design causing the circuit breaker to open when ground continuity is broken.